http://www-formal.stanford.edu/jmc/history/lisp/lisp.html
The Evolution of Lisp (Steele and Gabriel):
http://www.dreamsongs.com/Files/HOPL2-Uncut.pdf
The Original 'Lambda Papers' by Guy Steele and Gerald Sussman
http://library.readscheme.org/page1.html
Many papers on the evolution, design, and implementation of Scheme:
http://library.readscheme.org/page8.html